Ok so I was just driving my 99 4cylinder prerunner. I punched the gas and the tranny seemed to jump back a forth a lil bit...more than usual. After that, my truck has this terrible shudder at lower rpm's. Also, the check engine light is on. At higher rpm's the light begins to flash.

$37 later a local shop diagnosed it as needing new plug wires. I wasn't going to spend big bucks to have them do something simple like that so I will buy new wires and replace them tomorrow. I did, however, check the resistance on the wires. All but one were 0.xxx K. One read higher than 1.0 K. I sure hope that the problem is with the wires. If not I'm gonna be PO'd.